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7495 Feynman (1995 WS4)
Classification: Main-belt Asteroid          SPK-ID: 2007495
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .162976495571861 3.8707e-08  
a 2.80400168813614 1.3126e-08 au
q 2.347015319426129 1.0947e-07 au
i 6.776577353491883 3.5901e-06 deg
node 252.6665400309953 4.1699e-05 deg
peri 243.8318648373177 4.4095e-05 deg
M 2.533487355377079 1.4265e-05 deg
tp 2458988.430700253820
(2020-May-18.93070025)
6.7923e-05 TDB
period 1715.006747281827
4.70
1.2042e-05
3.297e-08
d
yr
n .2099117105927288 1.4739e-09 deg/d
Q 3.26098805684615 1.5265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1358  
   data-arc span      14887 days (40.76 yr)  
   first obs. used      1979-08-15  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51042  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:27:45  

Additional Information
 Earth MOID = 1.37049 au 
 Jupiter MOID = 1.85059 au 
 T_jup = 3.294 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO452274  
diameter diameter 7.059 km 2.630 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.078   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

7495 Feynman (1995 WS4)          Discovered 1995-Nov-22 by Klet at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1995 WS4 = 1986 WW6 = 1992 BS2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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